Methodology for geomechanically controlled transmissibility through active natural fractures in reservoir simulation

Sousa, Luísa Costa; Santos, Luiz Otávio Schmall dos; Rios, Victor de Souza; Araújo, Chrystiano; Celes, Waldemar; Sepehrnoori, Kamy

doi:10.1016/j.petrol.2016.04.040

Cited by 16 publications

(2 citation statements)

References 6 publications

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“…Recently, interest has increased regarding the studies of natural fractures on the surface (outcrop of reservoir) and the subsurface (e.g., microseismic event, core measurement, image logs, etc.). These have been proven by greater industry knowledge of the influence of natural fractures on subsurface fluid flow and by a significant and ever-increasing proportion of oil and gas discoveries where natural fractures play a crucial role in production [1,2,[5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Insight into the Effect of Natural Fracture Density in a Shale Reservoir on Hydraulic Fracture Propagation: Physical Model Testing

Wang

2023

Energies

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Here, laboratory tests were conducted to examine the effects of natural fracture density (NFD) on the propagation of hydraulic fracture (HF), HF and natural fracture (NF) interaction, and the formation of the stimulated reservoir volume (SRV). Laboratory methods were proposed to prepare samples with dense, medium and spare discrete orthogonal fracture networks. After conducting a true triaxial hydraulic fracturing experiment on the synthetic blocks, the experimental results were analyzed by qualitative failure morphology descriptions, and the quantitative analysis used two proposed new indices. On the pump pressure profiles, it reflected the non-linear interactions between HFs and NFs well. For rock blocks with a dense DFN density, pump pressure curves present fluctuation shape and the degree of interaction between HF and NF is strong; however, for model blocks with a sparse DFN density, the pump pressure curves present a sudden drop shape. In addition, different propagation behaviors of NFs—offset, divert, branch, and cross NF—can be observed from the fractured model blocks. By using a proposed index of “P-SRV”, the relationship between NFD and the fracturing effectiveness was further confirmed. Furthermore, the most striking finding is that mixed mode I–II and I–III fracture types can be formed in the naturally fractured model blocks. The experimental results are beneficial for grasping the influential mechanism of NFD on the propagation of HF and for developing more accurate and full 3D-coupled simulation models for unconventional oil and gas development.

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Section: Introductionmentioning

confidence: 99%

Insight into the Effect of Natural Fracture Density in a Shale Reservoir on Hydraulic Fracture Propagation: Physical Model Testing

Wang

2023

Energies

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“…However, as corner-point grids being the industry standard, it is very beneficial to apply the EDFM to corner-point grids for the study of realistic reservoirs. However, existing studies mentioning corner-point grids with EDFM (Panfili et al, 2015;Fumagalli et al, 2016;de Sousa Junior et al, 2016) have not comprehensively considered the complexities pertaining to the numerical formulations and geometrical calculations.…”

Section: Introductionmentioning

confidence: 99%